<template>
  <div class="icons">
    <swiper>
      <swiper-slide v-for="(page, index) of pages" :key="index">
        <div class="icon" v-for="item of page" :key="item.id">
          <div class="icon-img">
            <img class="icon-img-content" :src="item.imgUrl" />
          </div>
          <p class="icon-desc">{{ item.desc }}</p>
        </div>
      </swiper-slide>
    </swiper>
  </div>
</template>

<script>
export default {
  name: "HomeIcons",
  props: {
    list: Array
  },
  computed: {
    //pages是一个二维数组，用来实现轮播图的分页，8个图标为一页
    pages() {
      const pages = [];
      this.list.forEach((element, index) => {
        const page = Math.floor(index / 8);
        if (!pages[page]) {
          pages[page] = [];
        }
        pages[page].push(element);
      });
      return pages;
    }
  }
};
</script>

<style lang="stylus" scoped>
@import '~styles/variables.styl'
@import '~styles/mixins.styl'
.icons /deep/ .swiper-container
  height: 0
  padding-bottom: 50%
.icons
  margin-top: 0.1rem
.icon
  overflow: hidden
  position: relative
  float: left
  width: 25%
  height: 0
  padding-bottom: 25%
  .icon-img
    position: absolute
    top: 0
    left: 0
    right: 0
    bottom: 0.44rem
    box-sizing: border-box
    padding: 0.1rem
    .icon-img-content
      height: 100%
      margin: 0 auto
      display: block
  .icon-desc
    position: absolute
    left: 0
    right: 0
    bottom: 0
    line-height: 0.44rem
    text-align: center
    height: 0.44rem
    color: $darkTextColor
    ellipsis()
</style>
